нареч. unawares, unexpectedly, by surprise застать/застигнуть врасплох (кого-л.) – to take/catch unawares, to surprise, to take by surprise
to catch napping разг.
to catch off guard захваченный врасплох – taken aback застигнутый врасплох – in a debilitated moment, in a weak moment
нареч. unawares, by surprise
застать кого-л. ~ take* smb. unawares, take* smb. by surprise